The average lifespan of an HVAC blower motor is between 12 and 15 years. Fortunately, your HVAC blower motor doesn’t need much maintenance to survive this long. However, overheating or excessive moisture can make your blower motor pull the plug sooner than you expect.
How do I know if my furnace blower motor is bad?
Signs of an Overheating Blower Motor
- A “hot” or burning smell from vents in the home. This symptom is often coupled with the furnace shutting off completely. …
- Loud humming and other unusual noises. We have many homeowners call us mentioning humming and other odd sounds. …
- Furnace cycles off and refuses to restart.
When should a furnace blower motor be replaced?
Blower motors that are clogged with debris, or that become saturated with moisture can fail due to overworking or electrical shorts. Something to consider when replacing the blower motor in your HVAC system is how often you are paying for repairs. Most residential furnaces should last between fifteen and twenty years.
How much should it cost to replace a furnace blower motor?
How much does a furnace motor replacement cost? On average nationwide, a furnace blower motor replacement costs $400-$600, including parts and labor. A single-speed blower motor costs around $450 to replace while a variable-speed motor costs $600+.
What causes a furnace blower motor to go bad?
Blower motor breakdown can be the result of anything from old age to failed bearings, high amp draw, electrical failure in the windings, dirt accumulation, and more. “The most common cause is dirt accumulation due to lack of maintenance,” said Tom Beaulieu, president of Bay Area Services Inc.
What does a bad furnace blower motor sound like?
Scraping: A scraping or metal-against-metal sound most often is caused by a loose or broken blower wheel, or a broken motor mount. … A distinct scraping sound is usually a sign you should call a furnace technician for repairs. Thumping: Thumping and vibrating sounds are the results of an unbalanced blower wheel.
Why is my furnace running but not blowing air?
Check Your Furnace Air Filter
Next, check your heater’s air filter, as this can cause a furnace to stop blowing air. Your filter could be so saturated with dust and debris. In that case, even though the furnace is actually blowing air, your clogged filter is blocking it from making it into your ducts.
How do you know if your furnace is dying?
- 1) Your furnace is more than 15 years old. …
- 2) Your heating bill has increased. …
- 3) Your furnace has been repaired frequently the past two years. …
- 4) Your furnace makes strange noises. …
- 5) Thermostat setting never keeps you comfortable. …
- 6) Your burner flame is yellow instead of blue. …
- Add up the furnace replacement signs.
Can a blower motor be repaired?
Blower Motor Replacement: When Good Parts Go Bad. … There are a number of things that can go wrong with your heating system, but if the air stops blowing altogether and the same is true on cold air settings, a blower motor replacement is likely in order. The good news is that it’s a fairly straight forward repair.
Can I replace blower motor myself?
With our furnace blower replacement guide, you can do it yourself and save. The typical service call for a hvac technician to do this would cost several hundred dollars but you can save most of that money by doing it yourself. Our guide will walk you through the process of diagnosis, motor selection, and replacement.
What happens when blower motor goes bad?
When the heater blower motor fails, the vehicle can be left without a properly functioning heating and air conditioning system, which apart from compromising comfort, can also disable useful functions such as the window defogger.